B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 49/58 (2006.01) B29C 49/04 (2006.01) B29C 49/60 (2006.01) B29C 49/62 (2006.01) B29C 49/64 (2006.01) B29C 49/66 (2006.01) B29C 35/16 (2006.01)
Patent
CA 2127697
A method for blow molding a tubular container comprising the steps of blowing blow air into a parison to shape a tubular container (3), forming discharging ports (32) in that part of an unnecessary portion of a wall surface of the tubular container located opposite to a blow-in port (33) for blow air, and continuing to supply blow air so as to shorten cooling time for a molded piece after blow molding and to efficiently mold molded pieces superior in dimensional accuracy.
Ce procédé de moulage par soufflage d'un récipient de forme tubulaire consiste à insuffler l'air de soufflage dans une ébauche de manière à former ledit récipient tubulaire (3), à former les orifices de décharge (32) dans la partie du secteur non nécessaire de la paroi du récipient qui se trouve du côté opposé à l'orifice (33) d'admission de l'air, et à continuer d'émettre de l'air de soufflage, afin de raccourcir le temps de refroidissement de la pièce moulée, ce qui contribue efficacement à obtenir des pièces moulées d'une précision dimensionnelle supérieure.
Takakusaki Nobuyuki
Takeda Isamu
Terajima Yoshimi
Robic
Toyo Seikan Kaisya Ltd.
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